package com.zql.LeetCode;

import com.zql.baseEntity.ListNode;

/**
 * Created By ShuHua on 2021/8/26.
 */
public class DetectCycle_142 {
    public ListNode detectCycle(ListNode head) {
        if(head==null||head.next==null) return head;
        ListNode fast =head;
        ListNode slow =head;
        return head;
    }
}
